The Pierce injury didn't look too bad to me on replay. Basically looked like banged knees hard, which smarts but isn't usually serious (knocking wood).
I wouldn't judge Bogut on one game. He was awful tonight, but he's been a huge part of a lot of Warrior wins this season, not just defensively, but also with his slick passing and high hoops IQ on offense. The Ws are still +8.3 points better per 100 possessions when he's in the game.
That said, I kinda love it when Kerr runs out the Warriors' "Smallball Death Squad" of Curry, Thompson, Iguodala, Barnes and Green. Somehow, more often than not that group exploits more than it's exploited. I wouldn't be surprised to see it occasionally in the playoffs, depending on matchup. The Warriors are still pretty much auditioning for the 20-24 available minutes at backup C; and I kinda think when push comes to shove Kerr trusts the 6'7" Green over Lee or Speights (though I suspect we'll see a little of all of them).